Reinstall Identity Safe to Firefox 3.6

I just learned the hard way that NIS 2011 Identity Safe does not work with Firefox 4. (Vista x86 SP2). I just removed Firefox 4 & reinstalled 3.6, but I can not figure out how to re-add Norton Identity Safe to Firefox. Is there perhaps a link or Knowledge Base entry that I can jump to to get this info? Thanks in advance…

Have you rebooted?

NIS should find FF

Thanks, Dick, for the suggestion. (Of course, I feel pretty silly now for not having thought of this myself…) Cheers -